Steering limiting mechanism of toy trailer

Abstract

The utility model relates to a steering limiting mechanism of a toy trailer, which comprises a first limiting component integrally formed with a first wheel support and a second limiting component integrally formed with a rotating block, the first wheel support is rotatably connected with the rotating block, and when the first wheel support and the rotating block rotate relative to each other, the second limiting component is fixedly connected with the rotating block. The first limiting assembly partially moves on the second limiting assembly in a limited mode, and when the first wheel support and the rotating block relatively rotate to the corresponding position angle, the first limiting assembly partially abuts against the second limiting assembly, so that the first limiting assembly and the second limiting assembly form a steering limiting mechanism between the first wheel support and the rotating block. By means of the arrangement structure, a limiting screw structure does not need to be additionally arranged between the left-right rotating connecting position of the toy trailer body and the pull rod, the trailer does not need to pull the whole trailer body to steer when steering, only the first wheel support needs to be rotated when steering, and operation by children is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of children's toys, in particular to a steering limiting mechanism of a toy trailer. Background Art

[0002] The existing toy trailer includes a body and a pull rod for pulling the body. There is no steering limit mechanism between the pull rod and the body. The pull rod is turned upside down on the body. When the railing cannot turn left or right, the entire body is pulled to rotate by the pull rod when the body turns, which is not convenient for children to operate. For example, Chinese Patent No. 201811075979.3 discloses a foldable toy trailer, including a foldable frame and a pull rod for towing the frame, and the frame is provided with rollers; the frame includes an upper frame and a lower frame, and a connecting mechanism for connecting the pull rod to the upper frame and / or the lower frame; the upper frame corresponds to the lower frame up and down, and the upper frame and the lower frame are provided with cloth to form a storage cavity for storing items; the rollers are provided on the lower frame; the upper frame is hinged to the lower frame through the connecting mechanism.

[0003] In addition, some toy trailers are provided with limit screws at the connection between the pull rod and the vehicle body for left and right rotation, which additionally increases the assembly structure of the toy trailer. Therefore, further improvement is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a steering limit mechanism for a toy trailer, wherein a first limit assembly is integrally formed with a first wheel bracket, and a second limit assembly is integrally formed with a rotating block, and the first limit assembly and the second limit assembly form a limit fit and are arranged at a rotation fit position between the first wheel bracket and the rotating block. Through the above-mentioned setting structure, there is no need to additionally provide a limit screw structure between the toy trailer body and the left and right rotation connection of the pull rod, and when the trailer is turned, there is no need to pull the entire body to turn. When the trailer is turned, it is only necessary to rotate the first wheel bracket, and then the entire toy trailer can be pulled by the pull rod, which is convenient for children to operate.

[0005] A steering limit mechanism of a toy trailer designed for this purpose comprises a first limit assembly integrally formed with a first wheel bracket, and a second limit assembly integrally formed with a rotating block, the first wheel bracket is rotatably connected to the rotating block, the first limit assembly and the second limit assembly form a limit fit and are arranged at a rotation fit position between the first wheel bracket and the rotating block, when the first wheel bracket and the rotating block form a phase rotation, part of the first limit assembly is limitedly movable on the second limit assembly, and when the first wheel bracket and the rotating block are relatively rotated to a corresponding position angle, part of the first limit assembly abuts against the second limit assembly, so that the first limit assembly and the second limit assembly form a steering limit mechanism between the first wheel bracket and the rotating block, through the above-mentioned setting structure, there is no need to additionally provide a limit screw structure between the toy trailer body and the left and right rotating connection of the pull rod, and when the trailer is turned, it is not necessary to pull the entire body to turn, when the trailer is turned, it is only necessary to rotate the first wheel bracket, and then the entire toy trailer can be pulled by the pull rod, which is convenient for children to operate.

[0006] The first limiting component includes a limiting groove arranged on the first wheel bracket, and the second limiting component includes a positioning boss arranged on the rotating block. When the first wheel bracket and the rotating block form a phase rotation, the positioning boss moves circumferentially on the limiting groove to prevent the first wheel bracket and the rotating block from deviating from each other when the first wheel bracket and the rotating block form a phase rotation, resulting in unstable steering of the toy trailer.

[0007] The limiting groove is arranged in a circular ring shape, and a first arc-shaped matching portion is provided at the matching position between the limiting groove and the positioning boss. The positioning boss and the limiting groove form point contact, line contact or surface contact through the first arc-shaped matching portion, so that the toy trailer can turn effectively and smoothly when turning.

[0008] The first limiting assembly also includes a first limiting boss connected to the limiting groove. When the first wheel bracket and the rotating block rotate relatively to a corresponding position angle, the first limiting boss abuts against the positioning boss to form a steering limit for the toy bucket truck.

[0009] The second limiting assembly also includes a positioning groove connected to the positioning boss. When the first wheel bracket and the rotating block form a phase rotation, the positioning groove moves relative to the circumferential limiting motion on the first limiting boss to prevent the first wheel bracket and the rotating block from deviating from each other when the first wheel bracket and the rotating block form a phase rotation, resulting in unstable steering of the toy trailer.

[0010] The positioning groove is arranged in a circular ring shape, and a second arc-shaped matching portion is provided at the matching position between the first limiting boss and the positioning groove. Point contact, line contact or surface contact is formed between the first limiting boss and the positioning groove through the second arc-shaped matching portion, so that the toy trailer can turn effectively and smoothly when turning.

[0011] A rotating connection portion is provided between the first wheel bracket and the rotating block, and a rotating connection is formed between the first wheel bracket and the rotating block through the rotating connection portion, and a rotating connecting piece is provided on the rotating connection portion. When the first wheel bracket and the rotating block rotate with each other, the rotating connection portion forms a rotating fulcrum.

[0012] The first wheel bracket is provided with two connection blocks arranged at intervals, and an installation position for installing the toy trailer rod is formed between the two connection blocks. A steering wheel is provided at one end of the toy trailer rod. One end of the toy trailer rod is inserted into the steering wheel, and the steering wheel is rotatably arranged at the installation position; the toy trailer rod is turned upside down and arranged on the first wheel bracket through the steering wheel.

[0013] A toy trailer is arranged on the rotating block, one end of the toy trailer is fixedly connected to the rotating block, and the other end of the toy trailer is arranged on the second wheel bracket, and the other end of the toy trailer is fixedly connected to the second wheel bracket.

[0014] Both ends of the first wheel bracket and the second wheel bracket are bent respectively to form fixing blocks for inserting the wheel connecting shaft.

[0015] The utility model has the following beneficial effects:

[0016] The first limit assembly is integrally formed with the first wheel bracket, and the second limit assembly is integrally formed with the rotating block. The first limit assembly and the second limit assembly form a limit fit and are arranged at a rotation fit position between the first wheel bracket and the rotating block. Through the above-mentioned setting structure, there is no need to additionally provide a limit screw structure between the toy trailer body and the left and right rotation connection of the pull rod, and when the trailer is turning, there is no need to pull the entire body to turn. When the trailer is turning, it is only necessary to rotate the first wheel bracket, and then the entire toy trailer can be pulled by the pull rod, which is convenient for children to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a three-dimensional structural diagram of a toy tractor truck according to an embodiment of the utility model.

[0018] Figure 2 The utility model is a schematic diagram of the assembly and decomposition structure of a toy tractor truck according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of an embodiment of the utility model in which a pull rod is rotatably arranged on a toy trailer.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of a rotating block according to an embodiment of the utility model.

[0021] Figure 5It is a schematic diagram of the three-dimensional structure of the first wheel bracket according to an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1 , a steering limit mechanism of a toy trailer truck, comprising a first limit component 3 integrally formed with a first wheel bracket 1, and a second limit component 4 integrally formed with a rotating block 2, the first wheel bracket 1 and the rotating block 2 are arranged in an up-and-down stacked manner, the first wheel bracket 1 and the rotating block 2 are rotatably connected, the first limit component 3 and the second limit component 4 form a limit fit and are arranged at a rotation fit position between the first wheel bracket 1 and the rotating block 2, when the first wheel bracket 1 and the rotating block 2 form a phase rotation, the first limit component 3 partially limits the activity on the second limit component 4, and when the first wheel bracket 1 and the rotating block 2 rotate relative to each other to a corresponding position angle, the first limit component 3 partially abuts against the second limit component 4, so as to realize that the first limit component 3 and the second limit component 4 form a steering limit mechanism between the first wheel bracket 1 and the rotating block 2.

[0024] In this embodiment, the first wheel bracket 1 is formed into a whole with the first limiting assembly 3 through metal processing, and the rotating block 2 is formed into a whole with the second limiting assembly 4 through metal processing.

[0025] The first limiting assembly 3 includes a limiting groove 5 arranged on the first wheel bracket 1, and the second limiting assembly 4 includes a positioning boss 6 arranged on the rotating block 2. When the first wheel bracket 1 and the rotating block 2 rotate with each other, the positioning boss 6 moves circumferentially on the limiting groove 5.

[0026] The limiting groove 5 is arranged in an annular shape, and a first arc-shaped matching portion 7 is provided at the matching position between the limiting groove 5 and the positioning boss 6 , and point contact, line contact or surface contact is formed between the positioning boss 6 and the limiting groove 5 through the first arc-shaped matching portion 7 .

[0027] The first limiting assembly 3 further includes a first limiting boss 20 connected to the limiting groove 5 . When the first wheel bracket 1 and the rotating block 2 rotate relative to each other to a corresponding position angle, the first limiting boss 20 abuts against the positioning boss 6 .

[0028] The second limiting assembly 4 further comprises a positioning groove 8 connected to the positioning boss 6 . When the first wheel bracket 1 and the rotating block 2 rotate relative to each other, the positioning groove 8 moves on the first limiting boss 20 in a relative circumferential limiting direction.

[0029] The positioning groove 8 is arranged in an annular shape, and a second arc-shaped matching portion 9 is provided at the matching position between the first limiting boss 20 and the positioning groove 8 , and point contact, line contact or surface contact is formed between the first limiting boss 20 and the positioning groove 8 through the second arc-shaped matching portion 9 .

[0030] In this embodiment, the positioning groove 8 has two left and right second limiting bosses 21 spaced apart from each other.

[0031] A rotating connection part 10 is provided between the first wheel bracket 1 and the rotating block 2. The first wheel bracket 1 and the rotating block 2 are rotatably connected through the rotating connection part 10, and a rotating connection member 11 is provided on the rotating connection part 10. When the first wheel bracket 1 and the rotating block 2 rotate with each other, the rotating connection part 10 forms a rotating fulcrum.

[0032] The first wheel bracket 1 is provided with two connection blocks 12 arranged at intervals, and a mounting position 14 for mounting a toy trailer rod 13 is formed between the two connection blocks 12. A steering wheel 15 is provided at one end of the toy trailer rod 13. One end of the toy trailer rod 13 is inserted into the steering wheel 15, and the steering wheel 15 is rotatably set on the mounting position 14; the toy trailer rod 13 is turned upside down and set on the first wheel bracket 1 through the steering wheel 15.

[0033] A toy tractor 16 is provided on the rotating block 2 , one end of the toy tractor 16 is fixedly connected to the rotating block 2 , and a second wheel bracket 17 is provided on the other end of the toy tractor 16 , and the other end of the toy tractor 16 is fixedly connected to the second wheel bracket 17 .

[0034] Both ends of the first wheel bracket 1 and the second wheel bracket 17 are bent to form fixing blocks 19 for inserting the wheel connecting shaft 18 .

[0035] In this embodiment, screw holes for fixing the toy trailer 16 are respectively provided on the rotating block 2 and the second wheel bracket 17 .

[0036] In this embodiment, the fixing block 19 is provided with a through hole for inserting the wheel connecting shaft 18 .

[0037] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A steering limit mechanism for a toy trailer, characterized in that: The invention comprises a first limiting component (3) integrally formed with the first wheel bracket (1), and a second limiting component (4) integrally formed with the rotating block (2); the first wheel bracket (1) and the rotating block (2) are arranged in an up-and-down stacking manner; the first wheel bracket (1) and the rotating block (2) are rotatably connected; the first limiting component (3) and the second limiting component (4) form a limiting fit and are arranged at a rotationally matched position between the first wheel bracket (1) and the rotating block (2); when the first wheel bracket (1) and the rotating block (2) form a phase rotation, part of the first limiting component (3) moves in a limiting manner on the second limiting component (4); and when the first wheel bracket (1) and the rotating block (2) rotate relative to each other to a corresponding position angle, part of the first limiting component (3) abuts against the second limiting component (4), so that the first limiting component (3) and the second limiting component (4) form a steering limiting mechanism between the first wheel bracket (1) and the rotating block (2).

2. The steering limit mechanism of the toy trailer according to claim 1, characterized in that: The first limiting assembly (3) comprises a limiting groove (5) arranged on the first wheel bracket (1), and the second limiting assembly (4) comprises a positioning boss (6) arranged on the rotating block (2); when the first wheel bracket (1) and the rotating block (2) rotate in phase, the positioning boss (6) moves in a circumferential limiting direction on the limiting groove (5).

3. The steering limit mechanism of the toy trailer according to claim 2, characterized in that: The limiting groove (5) is arranged in a circular ring shape, and a first arc-shaped matching portion (7) is provided at the matching position between the limiting groove (5) and the positioning boss (6), and point contact, line contact or surface contact is formed between the positioning boss (6) and the limiting groove (5) through the first arc-shaped matching portion (7).

4. The steering limit mechanism of the toy trailer according to claim 2, characterized in that: The first limiting assembly (3) further comprises a first limiting boss (20) connected to the limiting groove (5); when the first wheel bracket (1) and the rotating block (2) are relatively rotated to a corresponding position angle, the first limiting boss (20) abuts against the positioning boss (6).

5. The steering limit mechanism of the toy trailer according to claim 4, characterized in that: The second limiting assembly (4) further comprises a positioning groove (8) connected to the positioning boss (6); when the first wheel bracket (1) and the rotating block (2) rotate relative to each other, the positioning groove (8) moves in a relative circumferential limiting direction on the first limiting boss (20).

6. The steering limit mechanism of the toy trailer according to claim 5, characterized in that: The positioning groove (8) is arranged in a circular ring shape, and a second arc-shaped matching portion (9) is provided at the matching position between the first limiting boss (20) and the positioning groove (8), and point contact, line contact or surface contact is formed between the first limiting boss (20) and the positioning groove (8) through the second arc-shaped matching portion (9).

7. The steering limit mechanism of the toy trailer according to claim 1, characterized in that: A rotating connection portion (10) is provided between the first wheel bracket (1) and the rotating block (2); the first wheel bracket (1) and the rotating block (2) are rotatably connected via the rotating connection portion (10); a rotating connection piece (11) is provided on the rotating connection portion (10); when the first wheel bracket (1) and the rotating block (2) rotate in phase, the rotating connection portion (10) forms a rotating fulcrum.

8. The steering limit mechanism of the toy trailer according to claim 1, characterized in that: The first wheel bracket (1) is provided with two connection blocks (12) arranged at intervals, and a mounting position (14) for mounting a toy tractor pull rod (13) is formed between the two connection blocks (12); a steering wheel (15) is provided at one end of the toy tractor pull rod (13); one end of the toy tractor pull rod (13) is inserted into the steering wheel (15), and the steering wheel (15) is rotatably arranged on the mounting position (14); the toy tractor pull rod (13) is turned upside down and arranged on the first wheel bracket (1) through the steering wheel (15).

9. The steering limit mechanism of the toy trailer according to claim 1, characterized in that: A toy tractor (16) is provided on the rotating block (2), one end of the toy tractor (16) is fixedly connected to the rotating block (2), and a second wheel bracket (17) is provided on the other end of the toy tractor (16), and the other end of the toy tractor (16) is fixedly connected to the second wheel bracket (17).

10. The steering limit mechanism of the toy trailer according to claim 9, characterized in that: Both ends of the first wheel bracket (1) and the second wheel bracket (17) are respectively bent to form a fixing block (19) for inserting the wheel connecting shaft (18).

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